Evaporator.



Patenied on. 29', |90|.

D. B. MORISON. EVAPORATOB.

(Application filed Feb. 25. 1901.)

(No Model.)

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DONALD BARNS MORISON, OF HARTLEPOOL, ENGLAND.

EVAPORATOR.

SPECIFICATION forming part of Letters Patent N 0. 685,482, dated October29, 1901.

Application filed February 25, 1901. Serial No 48,743. (No model.)

To all whom it may concern-.-

Be it known that I, DONALD BARNS MOBI- SON, a subject of the King ofGreat Britain and Ireland, residing at Hartlepool, in the county ofDurham, England, have invented new and useful Improvements inEvaporators, of which the following is a specification.

In the already-knownevaporator-s with heating-coils capable of beingwithdrawn radially from the interior of the apparatus to a positionoutside, the connection of the heating-coils with the steam-inlet andwater-discharge passages, respectively, is effected or established bythe aid of hollow pivots or trunnions on which the body of heatingcoilsis hinged by means of suitable tubes closed at one end and connectingthe separate heating-coils with one another. In this construction thesteam-supply and the discharge of the condensed water, respectively,take place through the said hollow trunnions on which the heating-coilsystem is hinged. It is obvious and practical experience has shown thatsuch an arrangement is disadvantageous for the reason that thesteamtrunnions are diffieult to keep tight on account of the weight ofthe overhanging coils and also because the scale which accumulates ontheir outer surfaces has to be removed before the coils can beradiated.- These disadvantages are obviated by the present invention,and the purpose or ob- .coil body.

My improved arrangement is exceedingly simple in construction andconvenientin use.

In the accompanying drawings, forming part of this specification, and inwhich similar letters of reference indicate like parts, Figure 1 is afront elevation of an evaporator containing a heating-coil bodyembodying my invention, the heating coil body and its joints being shownin vertical longitudi 1, showing a modification of the heating-coilbodyjoint.

As the example represented in the accompanying drawings shows, theseparate heating-coils a are connected to a supply tube or channel I)and a discharge tube orichannel c in one rigid girder-like casting d.The channels b and c, separated from'each other by a partition 6, areclosed at one end of the casting. .At this end the casting d isconnected or attached to the casing A of the evaporator by means of asuitable hinge-jointf. The tubes or channels cand b of the casting d atthe free end terminate in a palm-flange g of special construction andarranged with spigots or necks h and e', adapted to fit intocorresponding recesses or faucets 7a and Z of the steam'supply passage mand the dischargepassage n for the condensing water, both pets sagesbeing arranged in a convenient manner I in the wall of theevaporator-casin g. When the heating-coil body on the casting cl,respectively, is turned into the evaporator, the flange g slides with ahole on a bolt or stud 0, While the spigots h and t'enter into thefaucets 7c and Z, respectively, thereby formingoa spigot-and-faucetjoint, which may be secured and vtightened by means of a girder pand anut q, as shown in the drawings.

Suitable packing-rings may be employed, if required, to insure absolutesteam-tightness.

In order to withdraw or turn the heatingcoil body into an outsideposition for inspection or cleaning, it is only necessary to unscrewafter the removal-of the cover B of the evaporator the nut q and toremove the same and the girder p and then to swing out the heating-coilbody. In the same easy manner the connection may again be performed byswinging the heating-coil body into the evaporator and inposition,respectively, and then by tightening the thus-establishedspigotand-faucet joint by putting on the girder p and screwing homethe'nut q. The joint is thus effectively made with a minimum of boltsand with a minimum of room, both being features of importance in view ofthe fre- In order to support the heatingcoil body, I arrange at thepalm-jointed end of the apparatus and underneath the casting d a bracket0*, with an inclined path, so that on the heating-coil body beingradiated into the interior of the casing the hinged heating-coil body issupported by the bracket '1' and guided on the inclined path, thusinsuring that the palm joint is always accurately placed,notwithstanding the frequency with which the heating-coils are removedfor purpose of cleaning.

In the modification shown by Fig. 5 only the steamchannel I) isconnected to the steam-supply passage by a spigot-and-faucet joint,while the channel 0 is closed at both ends and the discharge of thecondensed water effected by means of a suitable dischargepipe 5, adaptedand arranged not to interfere with the swinging or turning of theheatingcoil body. In this modification the joint is tightened orstrengthened by outer bolts 0, fitting through or arranged in upper andlower extensions or lugs of the palm.

Having fully described myinvention, what I claim, and desire to secureby Letters Patent, is-

1. The combination with an evaporating vessel provided with fluid inletand outlet passages and wit-h a normally-closed opening; of aheating-coil pivotally connected with said vessel, and having fluidinlet and outlet passages and adapted to swing out of and into registerwith the corresponding passages in the vessel when said coil is swungthrough the aforesaid opening and back again into the vessel, for thepurpose set forth.

2. The combination with an evaporating vessel provided with fluid inletand outlet passages and with a normally-closed opening; of aheating-coil pivotally connected with said vessel and having fluid inletand outlet passages adapted to swing out of and into register with thecorresponding passages in the vessel when said coil is swung through theaforesaid opening and back again into the vessel, and means forsupporting the free end of the coil, forthe purpose set forth.

3. The combination with an evaporating vessel provided with an openingnormally closed by a cover and with fluid-tight inlet and outletpassages terminating in a socket; of a hollow casting having twopassages therein open at one end, coils connecting the pas sages, ahinge at the solid portion of said casting at one end, said castingarranged to be swung to bring the open ends of said passages oppositethe hinge into register with and fit the socket of the fluid-tight inletand outlet passages, substantially as set forth.

4. The combination with an evaporating vessel provided with an openingnormally closed by a cover and with fluid-tight inlet and outletpassages terminating in a socket; of a hollow casting divided into twopassages open at one end, coils connecting the passages, a guiding andsupporting bracket, a hinge at the end of said casting through the solidportion thereof and opposite the open ends of said chambers, saidcasting arranged to be swung on the hinge to allow the free end to rideon said bracket and the respective passages therein to register with andfit the sockets of the fluid-tight inlet and outlet passages.

5. The combination with an evaporating vessel provided with an opening,normally closed by a cover, and with a fluid-inlet passage terminatingin a socket-seat; of a heating-coil pivoted within the vessel to swingthrough said opening when the cover is removed and having a fluid-inletfitting the aforesaid socket-seat, the arrangement being such as tocause the coil-inlet to move into and out of the aforesaid socket-seatwhen said coil is swung into and out of the casing,

. and a suitable fluid-outlet for said coil so arranged as not tointerfere with its swinging movements, for the purpose set forth.

6. The combination with an evaporating vessel provided with an opening,normally closed by a cover, and with fluid inlet and outlet passagesterminating within the vessel in socket-seats; of a heating-coil pivotedwithin the vessel to swing out of said opening when the cover isremoved, said coil having plug-like terminals fitting the aforesaidsocket-seats, the arrangement being such as to cause said terminals tomove out of and into their respective socket-seats when the coil isswung out of and into' the casing, for the purpose set forth.

7. The combination with an evaporating vessel provided with anormally-closed opening and with fluid inlet and outlet passages; of aheating-coil, a carrier therefor hinged to the vessel to swing throughthe aforesaid opening, and provided with internal inlet and.

outlet passages in communication with the coil, said passages open atthe free end of the carrier and adapted to be connected fluid-tight withthe corresponding passages in the Vessel, a stationary guide guidingsaid free end of the carrier to connect its inlet and outlet passageswith the corresponding passages in the vessel, and means for locking thecarrier into operative position, snbstantiallyas and for the purpose setforth.

DONALD BARNS MORISON. Witnesses:

T. HARRY TILLY,

T. HARRY TILLY, Jr.

